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The page a user visits should load in 2-3 seconds. According to research, the modern user is not prepared to wait longer and simply leaves the site. You need to monitor page load speeds constantly and if performance is poor and users close the tab faster than the first item appears, you need to speed up the site.

Big systems require constant analysis and monitoring, especially when tasks change rapidly. Metrics help to monitor all processes to respond in time to system load and make the necessary changes. Metrics should be used when we need to analyze systems and processes' health. When we know the root of the problem, we will understand how to manage it. The best practices in IT technologies prove that the use of metrics helps speed up the release, not slow it down. Analyzing metrics will help you find the problem and fix it quickly, and not waste your time on it in the future.

Business analysis is the first thing to start work with a client. Business analysis – is a set of methods that help to understand the structure and features of the client's company, determine its needs, and offer solutions to the problem. In the process of business analysis, we can find the optimal solution, prepares requirements for it, evaluate which functionality is most important for the customer, and draw up and agree on documentation for developers. This usually works with big sites or applications.